Shelter window balances

A quick learner from USA says:
August 22, 2017
hi I'm trying to find these two parts ( this are Shelter windows) that needs to be replaced. i have attached you a couple pictures. thank you.
User submitted image of their window hardware.
Profile picture of Tom
Tom from SWISCO responded:
August 25, 2017
We may be able to custom make this for you. I'm thinking of using our S751-29, but with the bottom shoe swapped out for our 19-043. However, I'm not sure if the hole in the 19-043 will be big enough for you. Look it over and tell me your thoughts.

I would also like you to weigh your sash and tell me what you get. That way, we can determine the proper spring strength. Finally, how many balances did you need?
Long S-Clip
Long S-Clip
19-030
$0.70
29" Series 751 Channel Balance
29" Series 751 Channel Balance
S751-29
$11.73
Block and Tackle Screw-in Clip
Block and Tackle Screw-in Clip
19-043
$0.74
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